CASOS Working PAPER
"Politician Effort and Voter Inference" (PDF file)
Author: John W. Patty and Roberto A. Weber

Abstract
This paper explores a psychologically motivated model of belief for-mation in a political context. Using a retrospective voting framework, we specifically examine the implications of a common inference bias in which voters overweight the effect of an incumbent’s unobserved effort on realized outcomes. This bias is motivated by and consistent with the fundamental at-tribution error in social psychology, whereby people over-attribute the cause of observed outcomes to personal and dispositional causes and underweigh situational causes. We provide experimental evidence of this bias and show that it leads to reduced incentives for the politician to exert effort on the voters’ behalf.